If the progress bar doesn't move, your drivers are likely installed incorrectly. Re-verify your MTK VCOM driver installation or try switching to a USB 2.0 port instead of a USB 3.0 port.
You can download the firmware from the link below. This file usually includes the scatter file, necessary drivers, and the flashing tool. Samsung Clone S10 Lite Flash File MT6580 8.0
Hold the (or Volume Up, depending on the variant) button and connect the phone to the computer via your USB cable. If the progress bar doesn't move, your drivers